Gene therapy I hope this helps
Answer:
Control group
Explanation:
In an experiment, the group which receives the treatment (in this case injection of actual drug) is known as experimental group because the experiment is being conducted on it. While on the other hand the group which do not receive the treatment is known as control group. The results obtained from the experimental group are compared with the control group to determine the effectiveness of the treatment.
B. Soil Contamination
All the other answers are talking about clean and pure things while this answer is the only negative one. So B is your answer.
When a family faces a situation that is too hard to solve by itself, it is a sign of strength to ask for help.
B :) :) :) :) :) :) :) :)
